Introduction (Fisette, Fréchette, Janousek).- Part1. History of Philosophy. Chapter1. Brentano as a Historian of (Medieval) Philosophy (Laurent Cesalli (Geneva) ).- Chapter2. Brentano on Aristotle's Categories. A Critical Assessment (Venanzio Raspa (Urbino) ).- Chapter3. Brentano, Aristotle, and the Project of a scientific Philosophy (Emanuele Mariani (Lissabon)).- Chapter4. Brentano and his scholastic roots (David Torrijos-Castrillejo (Madrid)).- Part2. Psychology. Chapter5. Brentano on Phenomenalism and Physical Phenomena (Denis Fisette (Montreal)).- Chapter6. Brentanian Psychology as a Foundation for Philosophy (Arkadiusz Chrudzimski (Stettin)).- Chapter7. On the Several Senses of Psychology in Brentano (Charles Niveleau (Paris)).- Chapter8. Franz Brentano and Brain Anatomy in Vienna (Josef Halde (Graz)).- Part3. Descriptive phenomenology. Chapter9. Was Brentano a Self-Representationalist? (Denis Seron (Liège) ).- Chapter10. The Phenomenology of Mentality (Arnaud Dewalque (Liège)).- Chapter11. Attention in Brentano's Descriptive Psychology (Hynek Janousek (Prague)).- Chapter12. Brentano, Pre-Reflexive Consciousness, and Temporality (Martin Moore (Montreal)).- Chapter13. Brentano's Emotional Cognitivism (Gemmo Iocco (Parma)).- Chapter14. Brentano on Emotions (Ingrid Vendrell Ferran (Basel)).- Part 4. Chapter15. Language and Existence. About some Brentanian Paradoxes (Jan Sebestik (Paris)).- Chapter16. Brentanian Mereology. The theory of Parts and Wholes (Wilhelm Baumgartner (Würzburg)).- Chapter17. Substance and Accident in Brentano's Reism (Robin Rollinger (Prague)).- Chapter18. Logical tools for descriptive psychology. Set theory and foundational Mereology (Bruno Leclercq (Liège)).- Chapter19. Are Ideal Objects only Objects of Thought? The Controversy between Kotarbinski and Ingarden (Sébastien Richard (Brussels) .- Chapter20. Linguistic Fictions in Brentano (Charlotte Gauvry (Liège)).